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1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks Discuss the Early Eighties Bullnose Ford Truck

Brake proportioning valve

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Old Mar 20, 2015 | 09:45 AM
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Brake proportioning valve

Hello guys and gals, I'm having problems finding a brake proportioning valve for my 82' F100 Stepside w/300 6cyl four speed with power brakes my junk yard here doesn't carry any parts that old for my truck. I've tried eBay with no luck. Does anyone know where I might find one. Thank you all.
 
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Old Mar 20, 2015 | 09:55 AM
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Originally Posted by 82fordowner
Hello guys and gals, I'm having problems finding a brake proportioning valve for my 82' F100 Stepside w/300 6cyl four speed with power brakes my junk yard here doesn't carry any parts that old for my truck. I've tried eBay with no luck. Does anyone know where I might find one. Thank you all.


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They should have a section for Ford Trucks...
 
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Old Mar 20, 2015 | 09:06 PM
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There are some on ebay. Don't know if they would work or not though. Here's one.

http://www.ebay.com/itm/PROPORTIONING-COMBINATION-BRAKE-VALVE-1976-1986-Ford-F150-F250-F350-Bronco-/231508315396?pt=Motors_Car_Truck_Parts_Accessories&hash=item35e6f88d04&vxp=mtr
 
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Old Mar 21, 2015 | 10:42 AM
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Thanks everyone, I haven't found one on eBay that is for my exact year! Gonna keep looking. Thanks
 
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Old Mar 21, 2015 | 12:55 PM
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FWIW the parts book says:

E0TZ-2B257-A VALVE (BRAKE PRESSURE DIFFERENTIAL)
Fits 1980/83 F100/250 & Bronco under 8,500 lbs. GVW

No dealers or NOS vendors have any
 
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Old Mar 21, 2015 | 02:06 PM
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Originally Posted by ctubutis
FWIW the parts book says:

E0TZ-2B257-A VALVE (BRAKE PRESSURE DIFFERENTIAL)
Fits 1980/83 F100/250 & Bronco under 8,500 lbs. GVW

No dealers or NOS vendors have any
I have a question maybe you can answer. I've replaced brake booster brake master cylinder and a couple lines and the brakes are working weird one time it's a hard pedal I let off and reapply then they are good. I've read where you should use a proportioning valve bleeding tool when bleeding the system so as to not engage the proportioning valve. So maybe I should get the tool and rebleed the system as the brakes were fine before. It's cheaper then buying a new valve. Have you heard this before. Thank you Fred
 
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Old Mar 21, 2015 | 06:54 PM
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I've never heard (or can't remember) of that specific problem, it kinda sounds like the vacuum booster isn't always doing its job but I'd guess there could be other causes, too..

Here is what the book says about bleeding the brakes... yeah, they want you to use a spring-like tool to hold the pin out from the differential valve but I'd imagine you could use small Vice Grips® to do that, too...


 
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Old Mar 21, 2015 | 08:03 PM
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I have a new booster also, that doesn't mean it can't be bad. Thanks for the info.
 
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